Mateusz S.


427 dollar
5 years

My experience

MusclefoodApril 2019 - Present


In Touch NetworksOctober 2018 - April 2019

Full-Stack Javascript development with technologies like Node.js, Express.js, React.js, Next.js, Redux, headless CMS Prismic, testing with Jest and much more.

- creating new API endpoints
- refactoring existing microservices and API endpoints, make it more modern, up-to-date and reusable
- tracking and fixing issues/errors/wrong responses

- creating new features, components and make them reusable and well secured
- refactoring old code to the modern approach, increasing performance and reusability of code
- solving errors, removing unnecessary imports
- styling components with SCSS, creating reusable design variables and helpers
- unit testing with Jest

- creating project from scratch with newest version of Next.js (SSR - Server Side Rendering - full-stack Node.js and React.js based framework to create Universal or Isomorphic web applications)
- creating reusable components, helpers, logic, validation
- building new dynamic features based on marketing department needs
- custom Node.js and Express.js based server to increase performance and add couple of new endpoints
- unit testing with Jest

Freelance Web DevelopmentJanuary 2018 - April 2019

Full Stack Web/ Software Developer (JavaScript technologies).

ProjectsJanuary 2018 - January 2019

NASA Search - Next.js
Jan 2019

Done in 2 days NASA search web app!
Next.js - Node.js - React.js - Bootstrap - SCSS - NASA database

Beat Calories
Jun 2018 – Aug 2018

My own MERN Full-Stack Web Developer project. Social Media for people interested in healthy nutrition, recipes and diets.

My stack

Web Design, Visual Studio, Unit testing, Testing, Software Development, Social Media, SEO, SCSS, Sass, RESTful, REST API, React.js, Project Management, PHP, OOP, NoSQL, Node.js, Next.js, MySQL, MongoDB, Microservices, JSON, jQuery, JavaScript, HTML5, HTML, Heroku, GraphQL, Graphic Design, Google API, GitHub, Git, Front-end development, Facebook API, Express.js, CSS, CMS, Bootstrap, AWS Lambda, API, AJAX, Adobe Photoshop